September 7, 2018, ©. Leeham News: In the last Corner we looked at the drag hump which is created by several supersonic effects when an SST (SuperSonic Transport) passes Mach 1.
Now we will look at other aerodynamic problems facing an SST.
Sept. 6, 2018, © Leeham News: Boeing officials say the parked inventory of 737s has peaked at around 50 aircraft and should come down slowly as traveled work is performed.
Officials made the comments yesterday at its annual Investors Day for aerospace analysts.
The first two research notes LNC received last night reflected skepticism by Canaccord Genuity and JP Morgan that Boeing will successfully meet its recovery plan by year end.
As more notes were received today, these analysts generally were more receptive to Boeing’s upbeat message.
Sept. 6, 2018, © Leeham News: As incomplete Boeing 737s fill the ramps, taxiways and other available space at Renton Airport and Boeing Field, company officials sought to assure aerospace analysts there is a recovery plan that will see a full complement of deliveries by year-end.
At least two analysts were unconvinced following the annual Boeing Investors Day yesterday.
In notes issued by Canaccord Genuity and JP Morgan analysts late Wednesday night Seattle time, Kenneth Herbert and Seth Seifman respectively expressed doubt Boeing will meet its 737 delivery target.
Sept. 3, 2018, © Leeham News: There is more evidence the aerospace supply chain is in meltdown—and it’s going to get worse, a manufacturer tells LNC.
The OEM requested anonymity to speak frankly.
As aerospace analysts gather this week in Seattle for their annual investors day at Boeing, based on the research notes I see, there’s little indication they recognize the magnitude of the evolving problems with the supply chain.
Although the focus recently has been on Boeing and analysts will visit Boeing Wednesday, the issues affect all the OEMs.
This was followed by a Bloomberg report that Lufthansa Airlines continues to have shortages from Pratt & Whitney for the GTF engines powering the A320neo.
Since then, I’ve had my own additional conversations with the supply chain. The production ramp ups that already have been announced and those being contemplated are in peril and all manufacturers are being affected.
September 3, 2018, © Leeham News: Boeing’s insistence that more and more subcontractors meet stringent aerospace manufacturing standards risks adding cost and reducing flexibility to the supply chain, several direct and indirect Boeing suppliers tell LNC.
The aerospace giant is requiring more second and third tier suppliers have AS9100 certification. Until recent years, OEMs and their direct suppliers typically were the only companies that formally complied with AS9100.
Subcontractors were expected to conform to the standards, but did not have to formally comply with the requirements. Doing so is expensive and time consuming. Subcontractors’ work was covered by the Tier 1 suppliers’ or Boeing’s AS9100 certification.
The AS9100 standards were adopted in the late 1990s to improve and standardize quality management throughout the increasingly global aerospace industry.
August 31, 2018, ©. Leeham News: In the last Corner we discussed supersonic lift wave drag and how suddenly the length aspect ratio is more important than wingspan aspect ratio.
Now we talk about the problem of going from subsonic to supersonic flight.
Boeing can’t seem to close the business case on its Middle of the Market airplane, the New Midmarket Aircraft, or NMA.
And Airbus continues to stir the pot with talk of an A321XLR and the ever-present A321neo Plus.
Other than this, everything is fine.
Aug. 27, 2018, © Leeham News: Boeing is giving financial help to India’s Jet Airways, according to a news report.
This doesn’t come as a surprise.
Jet Airways has 225 737 MAXes on order (50 direct, the rest listed via lessors). It’s also in what appears to be dire financial straits.
Media reports indicated the airline was possibly going to be out of business in 60 days and it deferred releasing its financial results “indefinitely.” The government is going to probe the airline, according to a press report.
The Boeing aid is not common but it’s not unknown, either.
Part 1 appears here.
By Dan Catchpole
August 27, 2018, © Leeham News: For all its potential, additive manufacturing faces significant hurdles before it can deliver on advocates’ assertions that the technology will revolutionize the aerospace industry.
United Technologies is counting on additive manufacturing, often called 3D printing, to help it develop and produce new components faster, better and cheaper. Paula Hay is leading the expansion of additive manufacturing at United Technologies Aerospace Systems (UTAS). In part two to last week’s interview with Hay, LNC talks to her about what problems have to be solved for additive manufacturing (AM) to make good on its potential.